CS remove unnecessary docblock

Author: smnandre

src/Turbo/src/Bridge/Mercure/Broadcaster.php

@@ -40,18 +40,13 @@ final class Broadcaster implements BroadcasterInterface
      */
     public const TOPIC_PATTERN = 'https://symfony.com/ux-turbo/%s/%s';
 
-    /**
-     * @var ExpressionLanguage|null
-     */
-    private $expressionLanguage;
+    private ?ExpressionLanguage $expressionLanguage;
 
     public function __construct(
         private string $name,
         private HubInterface $hub,
     ) {
-        if (class_exists(ExpressionLanguage::class)) {
-            $this->expressionLanguage = new ExpressionLanguage();
-        }
+        $this->expressionLanguage = class_exists(ExpressionLanguage::class) ? new ExpressionLanguage() : null;
     }
 
     public function broadcast(object $entity, string $action, array $options): void